Glad I came across this post ...

Have an old True Temper fiberglass fly rod, think it dates back to the early 50's, and the cork handle has managed to crack and needs to be replaced. The down locking reel seat is metal (aluminum no doubt), but think I will use the plastic bag for the hot water just the same. Wondering how far to submerge the cork handle ~ any thoughts there(?)

Thanks for the posts.